23725519 has 2 divisors, whose sum is σ = 23725520. Its totient is φ = 23725518.

The previous prime is 23725487. The next prime is 23725549. The reversal of 23725519 is 91552732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23725519 - 2⁵ = 23725487 is a prime.

It is a super-2 number, since 2×23725519² = 1125800503638722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23725549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11862759 + 11862760.

It is an arithmetic number, because the mean of its divisors is an integer number (11862760).

Almost surely, 2^23725519 is an apocalyptic number.

23725519 is a deficient number, since it is larger than the sum of its proper divisors (1).

23725519 is an equidigital number, since it uses as much as digits as its factorization.

23725519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 23725519 is about 4870.8848272157. The cubic root of 23725519 is about 287.3460559585.

The spelling of 23725519 in words is "twenty-three million, seven hundred twenty-five thousand, five hundred nineteen".